Gromsblood farming can be tricky in classic, as the only two zones with a reasonable amount of it are Felwood and Blasted Lands. We will first be looking at the route in Felwood, as it has the most potential. Felwood is one of the three zones that has Plaguebloom, and with it also having Gromsblood and Dreamfoil, along with some other herbs, it’s a very good zone for herbalists. Though this leads to higher competition. So here it is:
Now, the Blasted Lands can be good for farming Gromsblood, too. The upside is that you also get Fire Blossom here, which is used for Fire Protection Potions, and Sungrass. The downside is that you will miss out on that sweet Plaguebloom. In addition, Blasted Lands is a good zone for Mithril farming. This route also makes for a much nicer circuit than Felwood, as most of the Gromsblood in Felwood grows on the western edge.